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Commit d812b3ca authored by Max Kellermann's avatar Max Kellermann Committed by Mauro Carvalho Chehab
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[media] dvb_frontend: add "detach" callback 



Prepare for making "release" asynchronous (via kref).  Some operations
may need to be run synchronously in dvb_frontend_detach(), and that's
why we need a "detach" callback.

Signed-off-by: default avatarMax Kellermann <max.kellermann@gmail.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent 967d8e8f

drivers/media/dvb-core/dvb_frontend.c

+1 −0
Original line number Diff line number Diff line
@@ -2756,6 +2756,7 @@ void dvb_frontend_detach(struct dvb_frontend* fe) 
	dvb_frontend_invoke_release(fe, fe->ops.release_sec);

	dvb_frontend_invoke_release(fe, fe->ops.tuner_ops.release);

	dvb_frontend_invoke_release(fe, fe->ops.analog_ops.release);

	dvb_frontend_invoke_release(fe, fe->ops.detach);

	dvb_frontend_invoke_release(fe, fe->ops.release);

}

EXPORT_SYMBOL(dvb_frontend_detach);

drivers/media/dvb-core/dvb_frontend.h

+6 −1
Original line number Diff line number Diff line
@@ -330,7 +330,11 @@ struct dtv_frontend_properties; 
 *

 * @info:		embedded struct dvb_tuner_info with tuner properties

 * @delsys:		Delivery systems supported by the frontend

 * @release:		callback function called when frontend is dettached.

 * @detach:		callback function called when frontend is detached.

 *			drivers should clean up, but not yet free the struct

 *			dvb_frontend allocation.

 * @release:		callback function called when frontend is ready to be

 *			freed.

 *			drivers should free any allocated memory.

 * @release_sec:	callback function requesting that the Satelite Equipment

 *			Control (SEC) driver to release and free any memory
@@ -415,6 +419,7 @@ struct dvb_frontend_ops { 


	u8 delsys[MAX_DELSYS];



	void (*detach)(struct dvb_frontend *fe);

	void (*release)(struct dvb_frontend* fe);

	void (*release_sec)(struct dvb_frontend* fe);